CY8CMBR2110

The ultra-low-power CY8CMBR2110 family supports up to ten capacitive touch-sensing channels that enable ten buttons/ten LEDs

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Overview

The CY8CMBR2110 CAPSENSE™ controller is register-configured and supports direct LED drive and LED effects at power-on and during run time. CY8CMBR2110 is enabled with Infineon's SmartSense auto-tuning algorithm, eliminating the need for system tuning. This advancement enables designers to reduce the UI design task to the PCB layout of the sensor board and the EZ-Click Customizer tool – the CAPSENSE™ Express controller handles the rest.

Key Features

  • Up to ten CAPSENSE™ buttons/LEDs
  • Voltage range 1.71 V to 5.5 V
  • No programming required
  • SmartSense auto-tuning
  • 15 μA per button in run mode
  • 100 nA in the deep sleep mode
  • Robust noise-immunity

Products

About

About CY8CMBR2110

The CY8CMBR2110 CAPSENSE™ Express capacitive touch-sensing controller saves time and money, quickly enabling a capacitive touch-sensing user interface in your design. It is a register-configurable device and does not require any firmware coding or device programming. In addition, this device is enabled with Infineon's SmartSense auto-tuning algorithm which eliminates the need to manually tune the user interface during development and production ramp. This speeds the time-to-volume and saves valuable engineering time, test time, and production yield loss.

The EZ-Click Customizer tool is a simple graphical interface for configuring the device features, through the I2C interface. One configuration can be used to configure multiple samples in different boards.

AN76000 - CY8CMBR2110 CAPSENSE™ Design Guide
Key features

Register configurable CAPSENSE™ Controller

  • Does not require firmware or device programming
  • Ten-button solution configurable through I2C protocol
  • Ten general purpose outputs (GPOs)
  • GPOs are linked to CAPSENSE™ buttons
  • GPOs support direct LED drive

SmartSense auto-tuning

  • CAPSENSE™ algorithm that continuously compensates for system, manufacturing, and environmental changes
  • Dynamically sets CAPSENSE™ parameters
  • Eliminates the need for manual system tuning
  • Wide parasitic capacitance (CP) range (5-40 pF)

I2C interface

  • No clock stretching
  • Supports up to 100 kHz speed

Wide operating voltage range

  • 1.71—5.5 V
  • Ideal for both regulated and unregulated battery applications

Low power consumption

  • Average current consumption of 23 µA per button
  • Deep sleep current: 100 nA

Industrial temperature range: –40°C to +85°C

32-pin QFN package (5 mm x 5 mm x 0.6 mm)

EZ-Click™ Customizer Tool

  • Simple graphical configuration
  • Dynamically configures all features
  • Configurations can be saved and reused later
Advanced features
  • Flanking sensor suppression (FSS)
    • Distinguishes between signals from closely spaced buttons
  • User-configurable LED effects
    • On system power-on
    • On button touch
    • LED ON time after button release
    • Standby mode LED Brightness
  • Buzzer signal output
  • Analog voltage output
    • Using external resistor bridge
  • Attention line interrupt to host to indicate any CAPSENSE™ button status change
  • CAPSENSE™ performance data through I2C interface
    • Simplifies production line testing and system debug

About CY8CMBR2110

The CY8CMBR2110 CAPSENSE™ Express capacitive touch-sensing controller saves time and money, quickly enabling a capacitive touch-sensing user interface in your design. It is a register-configurable device and does not require any firmware coding or device programming. In addition, this device is enabled with Infineon's SmartSense auto-tuning algorithm which eliminates the need to manually tune the user interface during development and production ramp. This speeds the time-to-volume and saves valuable engineering time, test time, and production yield loss.

The EZ-Click Customizer tool is a simple graphical interface for configuring the device features, through the I2C interface. One configuration can be used to configure multiple samples in different boards.

AN76000 - CY8CMBR2110 CAPSENSE™ Design Guide

Key features

Register configurable CAPSENSE™ Controller

  • Does not require firmware or device programming
  • Ten-button solution configurable through I2C protocol
  • Ten general purpose outputs (GPOs)
  • GPOs are linked to CAPSENSE™ buttons
  • GPOs support direct LED drive

SmartSense auto-tuning

  • CAPSENSE™ algorithm that continuously compensates for system, manufacturing, and environmental changes
  • Dynamically sets CAPSENSE™ parameters
  • Eliminates the need for manual system tuning
  • Wide parasitic capacitance (CP) range (5-40 pF)

I2C interface

  • No clock stretching
  • Supports up to 100 kHz speed

Wide operating voltage range

  • 1.71—5.5 V
  • Ideal for both regulated and unregulated battery applications

Low power consumption

  • Average current consumption of 23 µA per button
  • Deep sleep current: 100 nA

Industrial temperature range: –40°C to +85°C

32-pin QFN package (5 mm x 5 mm x 0.6 mm)

EZ-Click™ Customizer Tool

  • Simple graphical configuration
  • Dynamically configures all features
  • Configurations can be saved and reused later

Advanced features
  • Flanking sensor suppression (FSS)
    • Distinguishes between signals from closely spaced buttons
  • User-configurable LED effects
    • On system power-on
    • On button touch
    • LED ON time after button release
    • Standby mode LED Brightness
  • Buzzer signal output
  • Analog voltage output
    • Using external resistor bridge
  • Attention line interrupt to host to indicate any CAPSENSE™ button status change
  • CAPSENSE™ performance data through I2C interface
    • Simplifies production line testing and system debug

Documents

Documents

Design resources

Developer community

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